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diff --git a/org.argeo.entity.ui/src/org/argeo/entity/ui/forms/AbstractTermsPart.java b/org.argeo.entity.ui/src/org/argeo/entity/ui/forms/AbstractTermsPart.java
new file mode 100644
index 0000000..a7f240f
--- /dev/null
+++ b/org.argeo.entity.ui/src/org/argeo/entity/ui/forms/AbstractTermsPart.java
@@ -0,0 +1,109 @@
+package org.argeo.entity.ui.forms;
+
+import javax.jcr.Item;
+
+import org.argeo.cms.ui.CmsTheme;
+import org.argeo.cms.ui.util.CmsIcon;
+import org.argeo.cms.ui.viewers.EditablePart;
+import org.argeo.cms.ui.widgets.ContextOverlay;
+import org.argeo.cms.ui.widgets.StyledControl;
+import org.argeo.entity.TermsManager;
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.layout.GridData;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Label;
+import org.eclipse.swt.widgets.Text;
+import org.eclipse.swt.widgets.ToolItem;
+
+/** Common logic between single and mutliple terms editable part. */
+public abstract class AbstractTermsPart extends StyledControl implements EditablePart {
+	private static final long serialVersionUID = -5497097995341927710L;
+	protected final TermsManager termsManager;
+	protected final String typology;
+
+	protected final boolean editable;
+
+	private CmsIcon deleteIcon;
+	private CmsIcon addIcon;
+	private CmsIcon cancelIcon;
+
+	private Color highlightColor;
+	private Composite highlight;
+
+	protected final CmsTheme theme;
+
+	public AbstractTermsPart(Composite parent, int style, Item item, TermsManager termsManager,
+			String typology) {
+		super(parent, style, item);
+		this.termsManager = termsManager;
+		this.typology = typology;
+		this.theme = CmsTheme.getCmsTheme(parent);
+		editable = !(SWT.READ_ONLY == (style & SWT.READ_ONLY));
+		highlightColor = parent.getDisplay().getSystemColor(SWT.COLOR_GRAY);
+	}
+
+	protected void createHighlight(Composite block) {
+		highlight = new Composite(block, SWT.NONE);
+		highlight.setBackground(highlightColor);
+		GridData highlightGd = new GridData(SWT.FILL, SWT.FILL, false, false);
+		highlightGd.widthHint = 5;
+		highlightGd.heightHint = 3;
+		highlight.setLayoutData(highlightGd);
+
+	}
+
+	protected String getTermLabel(String name) {
+		return name;
+	}
+
+	protected abstract void refresh(ContextOverlay contextArea, String filter, Text txt);
+
+	protected boolean isTermSelectable(String term) {
+		return true;
+	}
+
+	protected void processTermListLabel(String term, Label label) {
+
+	}
+
+	//
+	// STYLING
+	//
+	public void setDeleteIcon(CmsIcon deleteIcon) {
+		this.deleteIcon = deleteIcon;
+	}
+
+	public void setAddIcon(CmsIcon addIcon) {
+		this.addIcon = addIcon;
+	}
+
+	public void setCancelIcon(CmsIcon cancelIcon) {
+		this.cancelIcon = cancelIcon;
+	}
+
+	protected TermsManager getTermsManager() {
+		return termsManager;
+	}
+
+	protected void styleDelete(ToolItem deleteItem) {
+		if (deleteIcon != null)
+			deleteItem.setImage(deleteIcon.getSmallIcon(theme));
+		else
+			deleteItem.setText("-");
+	}
+
+	protected void styleCancel(ToolItem cancelItem) {
+		if (cancelIcon != null)
+			cancelItem.setImage(cancelIcon.getSmallIcon(theme));
+		else
+			cancelItem.setText("X");
+	}
+
+	protected void styleAdd(ToolItem addItem) {
+		if (addIcon != null)
+			addItem.setImage(addIcon.getSmallIcon(theme));
+		else
+			addItem.setText("+");
+	}
+}